1. That is not an obvious problem to refer to without giving more information.2. We will not give you specific help on homework problems, and we will certainly not do homework for you.

If you have a specific question about the topic, or if you want to ask about a very specific aspect of one part of your answers, we might be able to respond to that. But in general homework is for your own practice.

We aren't going to post answers to problems on the website, regardless of whether this is 'your' homework or not (because it will be someone's eventually, and we don't want them finding answers here).

If you have a specific question, you can ask that.

But also, as I said, you would need to tell us what the actual problem is asking, and in general we could discuss ideas about phonology with you, but we may not be able to reply with the exact approach used in a particular book.